93 Aerostar heater blower motor problem

My daughter drives our 93 Aerostar. The heater blower motor stopped working
the other day. I checked all of the fuses in the fuse block and all look

good.
Does anyone know if there is an in-line fuse under the dash/hood that I can
check next?
Also, the blower motor has a blue wire and an orange wire in the connector,
which one of these wire should I connect a power source to see if the motor
works?
Thanx in advance for your advice and replies.
Best regards
Frank

The most common failure is the power connector to the blower motor. Use a meter
to check for voltage; if it's there at the connector, try a new pigtail or just
crimp the actusl terminal connectors a bit to tighten the connections.

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